Finding the Fourth Proportional to 2,141.64, 2,953.80 and 1,809.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.64 : 2,953.80 = 1,809.54 : x
2. Step 2: Convert to fraction form
   2,141.64/2,953.80 = 1,809.54/x
3. Step 3: Cross multiply
   2,141.64x = 2,953.80 × 1,809.54
4. Step 4: Simplify right side
   2,141.64x = 5,345,019.25
5. Step 5: Solve for x
   x = 5,345,019.25/2,141.64
6. Step 6: Final answer
   x = 2,495.76